The 31-year-old made 338 appearances in a career spanning seven seasons at Liverpool before joining Serie A outfit Roma in 2008.
Riise, who scored 30 goals for the Reds, left the Italian capital last summer to return to the Premier League with the Cottagers, and made his first appearance back at Anfield on Monday since leaving.
“I was excited all day and had been looking forward to the game all season,” Riise told Liverpool’s website. “It was great to come back.
“I think the team performed well and on a personal level I think I had a good game, and I’m happy with the three points.
“I said to Brede Hangeland in the warm up that it felt so weird because I’d played so many games here, and now I was playing against Liverpool.
“It was a strange experience, but I enjoyed it and I’m really grateful for the response I got from the crowd.
“After seven years, they never forget what you’ve done here – and I am thankful for that.
“I didn’t know what to expect really, and then I came out and they started singing my name. I got goose bumps down my back and I was really thankful and grateful for that kind of response.
“They proved they are the best fans in the world and they never forget what players do for the team and I am really thankful for it. It’s something I won’t forget.”
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